JPH0244790U

JPH0244790U -

Info

Publication number: JPH0244790U
Application number: JP12331488U
Authority: JP
Priority date: 1988-09-20
Filing date: 1988-09-20
Publication date: 1990-03-28

Description

[Brief explanation of drawings]

第１Ａ図はこの考案に係る電子擦弦楽器の一実
施例を示す外観構成図、第１Ｂ図は擦弦操作検出
部周辺と弓とを示す断面図、第１Ｃ図は回転軸の
軸受部周辺を示す断面図、第２図はこの実施例に
使用される全体回路構成図、第３図は時間の経過
に従つて変動するデジタル擦弦データの特性曲線
ＡおよびＢを示す図、第４図は擦弦データイニシ
ヤルデータ変換テーブルの変換内容の一例を示す
図、第５図はＣＰＵのゼネラルフローチヤートを
示す図、第６図は演奏モード設定処理のフローチ
ヤートを示す図、第７図は第１演奏モード設定の
場合の楽音パラメータ制御のためのフローチヤー
トを示す図、第８図は第２演奏モード設定の場合
の楽音パラメータ制御のためのフローチヤートを
示す図、第９ａ図は第１演奏モード設定下で制御
された楽音音量の各特性曲線ＡおよびＢを示す図
、第９ｂ図は第２演奏モード設定下で制御された
楽音音量の各特性曲線ＡおよびＢを示す図である
。１……擦弦センサ、４……ＣＰＵ、５……音高
設定スイツチ群、７……擦弦データイニシヤルデ
ータ変換テーブル、１８……楽音発生回路、５１
……回転軸、５２……発電機、ＳＫ……擦弦操作
検出部。 Fig. 1A is an external configuration diagram showing an embodiment of the electronic stringed instrument according to this invention, Fig. 1B is a cross-sectional view showing the area around the stringing operation detection unit and the bow, and Fig. 1C is the area around the bearing of the rotating shaft. 2 is a diagram showing the overall circuit configuration used in this embodiment, FIG. 3 is a diagram showing characteristic curves A and B of digital string data that fluctuate over time, and FIG. A diagram showing an example of the conversion contents of the string data initial data conversion table, FIG. 5 is a diagram showing a general flowchart of the CPU, FIG. 6 is a diagram showing a flowchart of performance mode setting processing, and FIG. FIG. 8 is a flowchart for controlling musical tone parameters when the first performance mode is set, FIG. 8 is a flowchart for controlling musical tone parameters when the second performance mode is set, and FIG. 9a is a flowchart for controlling musical tone parameters when the second performance mode is set. FIG. 9b is a diagram showing characteristic curves A and B of the musical tone volume controlled under the mode setting, and FIG. 9b is a diagram showing characteristic curves A and B of the musical tone volume controlled under the second performance mode setting. DESCRIPTION OF SYMBOLS 1... String rubbing sensor, 4... CPU, 5... Pitch setting switch group, 7... String rubbing data initial data conversion table, 18... Musical sound generation circuit, 51
...Rotating shaft, 52... Generator, SK... String operation detection section.

Claims

[Scope of Claim for Utility Model Registration] (1) A string rubbing sensor means detects the string rubbing operation state on the string rubbing input section, and a string rubbing detection signal detected by the string rubbing sensor means is sent to a musical sound generating means. , in an electronic stringed instrument that generates a predetermined musical tone corresponding to the stringed string detection signal from the musical sound generating means, the stringed string detection signal detected by the stringed string sensor means is converted into a corresponding digital stringed string detection signal. an analog-to-digital converter, and when the value of the digital string detection signal converted by the analog-to-digital converter exceeds a predetermined set value, in response, the musical tone generator starts generating musical tones; sound generation start instruction means for outputting a sound generation start instruction signal for instructing the sound generation start instruction signal; and after the sound generation means generates a predetermined musical tone based on the sound generation start instruction signal outputted from the sound generation start instruction means, the analog An electronic bowed string instrument comprising: musical tone parameter control means for variably controlling musical tone parameters of a musical tone being generated based on the value of the digital bowed string detection signal converted by the digital conversion means. (2) In the electronic bowed string instrument according to claim 1 of the utility model registration claim, the musical tone parameter control means controls the volume of the musical note being produced according to the digital bowed string data converted by the analog-to-digital conversion means. An electronic bowed string instrument, characterized in that it outputs a musical tone parameter control signal for variably controlling musical tone parameters of at least one of level and timbre content. (3) In the electronic bowed string instrument according to claim 1 of the utility model registration claim, after the sound generation means generates a predetermined musical tone by outputting the sound generation start instruction signal from the sound generation start instruction means, the analog・When the value of the digital string detection signal detected by the digital conversion means becomes smaller than a predetermined setting value, in response to this, a sound generation end for instructing the musical sound generation means to end the sound generation. An electronic bowed stringed musical instrument, further comprising sound end instruction means for outputting an instruction signal. (4) In the electronic bowed string instrument according to claim 1 or 3 of the utility model registration claim, a pitch specifying means for specifying the pitch of a musical tone to be generated; and the pitch specifying means. an electronic device comprising: pitch information indicating means for outputting pitch information corresponding to the pitch specifying operation to the musical sound generating means when a pitch specifying operation is performed; A bowed stringed instrument. (5) The string rubbing operation state for the string rubbing input section is detected by the string rubbing sensor means, the string rubbing detection signal detected by the string rubbing sensor means is sent to the musical sound generating means, and the string rubbing operation state is detected from the musical sound generating means. An electronic stringed instrument that generates a predetermined musical tone corresponding to a string detection signal, comprising: an analog-to-digital conversion means that converts a string detection signal detected by the string detection signal into a corresponding digital string detection signal; When the value of the digital string detection signal converted by the analog-to-digital conversion means exceeds a predetermined set value, a sound generation start instruction for instructing the musical sound generation means to start sounding a musical tone in response to the value exceeds a predetermined set value. sound generation start instructing means for outputting a signal; and a digital initial bowed string generated when a musical tone starts to be generated based on the value of the digital bowed string detection signal when the sound generation start instruction signal is outputted from the sound generation start instruction means. an initial string data generation means for generating data, and outputs the digital initial string data generated by the initial string data generation means to the musical sound generation means, and outputs the digital initial string data generated by the initial string data generation means to the musical sound generation means, and outputs the digital initial string data generated by the initial string data generation means to 1. An electronic bowed string instrument, comprising: a musical tone parameter control means for variably controlling musical tone parameters at the start of musical tone production. (6) In the electronic stringed instrument according to claim 5 of the utility model registration claim, the initial stringed string data generation means converts the value of the digital stringed string detection signal output from the analog-to-digital converter into a predetermined digital initial value. 1. An electronic bowed stringed instrument, comprising initial data conversion means for converting initial data into digital data. (7) In the electronic stringed instrument according to claim 6 of the utility model registration, the initial data conversion means converts the digital stringed string detection signal converted by the analog-to-digital conversion means into a predetermined digital initial stringed stringed instrument. An electronic bowed string instrument characterized by having conversion table means for converting into data. (8) In the electronic bowed string instrument according to claim 5 of the utility model registration claim, after the sound generation means generates a predetermined musical tone by outputting the sound generation start instruction signal from the sound generation start instruction means, the analog・After-rubbing data generation means for generating digital after-rubbing data generated after a musical tone is generated based on the value of the digital string-rubbing detection signal detected by the digital conversion means; The musical tone parameter control means outputs the generated digital after-string data to the musical sound generation means, and variably controls musical tone parameters after the musical tone is generated according to the digital after-string data. An electronic stringed instrument characterized by: (9) In the electronic stringed instrument according to claim 5 of the utility model registration claim, the musical tone parameter control means generates digital initial stringed string data in accordance with the digital initial stringed string data generated by the initial stringed string data generation means. An electronic bowed stringed instrument, characterized in that it outputs a musical tone parameter control signal for variably controlling at least one musical tone parameter of the volume level or timbre content of a musical tone. (10) In the electronic stringed instrument according to claim 8 of the utility model registration, the musical tone parameter control means adjusts the musical tone being produced according to the digital after-string data generated by the after-string data generation means. An electronic bowed string instrument, characterized in that it outputs a musical tone parameter control signal for variable control of musical tone parameters of at least one of the volume level and timbre content of the electronic bowed string instrument. 〓(11)11〓 In the electronic bowed string instrument according to claim 5 or 8 of the utility model registration claim, a predetermined musical tone is generated from the musical tone generation means by outputting the sound generation start instruction signal from the sound generation start instruction means. After the generation, when the value of the digital string detection signal detected by the analog-to-digital conversion means becomes smaller than a predetermined setting value, in response to this, the musical sound generation means is instructed to stop producing the musical sound. 1. An electronic bowed string instrument, further comprising a sound generation end instruction means for outputting a sound generation end instruction signal for instructing. 〓(12)１２〓 Scope of claims for utility model registration, Paragraph 5,
In the electronic bowed string instrument described in paragraph 8 or paragraph 11, a pitch specifying means for specifying the pitch of a musical sound to be generated, and a pitch specifying operation is performed on the pitch specifying means. an electronic bowed string instrument, comprising: pitch information indicating means for outputting pitch information corresponding to the pitch specifying operation to the musical sound generating means; 〓(13)１３〓 The string rubbing operation state for the string rubbing input section is detected by the string rubbing sensor means, and the string rubbing detection signal detected by the string rubbing sensor means is sent to the musical sound generating means. In the electronic stringed instrument that generates a predetermined musical tone corresponding to the stringed string detection signal from the stringed string instrument, analog-to-digital conversion means converts the stringed string detection signal detected by the stringed string sensor means into a corresponding digital stringed string detection signal. and a first point in time when the value of the digital string detection signal converted by the analog-to-digital conversion means exceeds a predetermined set value, and a second point in time until a predetermined time has elapsed from the first point in time. sound generation start instructing means for outputting a musical tone start instruction signal for instructing the musical tone generation means to start generating musical tones in response to the first point in time measured by the clocking means; Based on the value of the digital string detection signal at the second point in time measured by the timer,
an initial string data generation means for generating initial string data to be generated at the start of sound generation of a musical tone; and outputting digital initial data generated by the initial string data generation means to the musical sound generation means; An electronic bowed string instrument comprising: musical tone parameter control means for variably controlling musical tone parameters at the start of musical tone generation in accordance with initial stringed string data. (14) 14 In the electronic bowed string instrument according to claim 13 of the utility model registration claim, the timekeeping means comprises:
A counting means that starts counting when the value of the digital string detection signal converted by the analog-to-digital converting means exceeds a predetermined set value, and instructs to end the counting after counting for a predetermined time. An electronic bowed string instrument with certain characteristics. (15) 15 In the electronic stringed instrument according to claim 13 of the utility model registration, the initial data conversion means converts the digital stringed detection signal converted by the analog-to-digital conversion means into a corresponding digital stringed instrument. An electronic bowed string instrument characterized by a conversion table means for converting into a bowed string conversion value. 〓(16)16〓 In the electronic bowed string instrument according to claim 13 of the utility model registration claim, after the sound generation means generates a predetermined musical tone by outputting the sound generation start instruction signal from the sound generation start instruction means. , after-rubbing data generation means for generating after-rubbing data to be generated after a musical tone is generated, based on the value of the digital string-rubbing detection signal output from the analog-to-digital conversion means; and this after-rubbing data generation means. The after-string data generated by is outputted to the musical sound generating means, and according to this after-string data,
An electronic bowed string instrument, further comprising: musical tone parameter control means for variably controlling musical tone parameters after the musical tone is produced. 〓(17)17〓 In the electronic stringed instrument according to claim 13 of the utility model registration claim, the initial stringed string data generation means converts the value of the digital stringed string detection signal outputted from the analog-to-digital conversion means into a predetermined value. An electronic stringed instrument characterized by comprising: initial data conversion means for converting digital initial stringed data into digital initial stringed string data. (18) 18 In the electronic stringed instrument according to claim 17 of the utility model registration, the initial data conversion means converts the digital stringed string detection signal converted by the analog-to-digital conversion means into a predetermined digital initialization signal. An electronic stringed instrument characterized by having conversion table means for converting into stringed string data. 〓(19)19〓 In the electronic stringed instrument according to claim 13 of the utility model registration, the musical tone parameter control means may perform the following steps according to the digital initial stringed string data generated by the initial stringed string data generation means: An electronic bowed string instrument characterized in that it outputs a musical tone parameter control signal for variably controlling a musical tone parameter of at least one of the volume level and timbre content of a musical tone to be generated. 〓(20)20〓 In the electronic stringed instrument according to claim 16, the musical tone parameter control means generates sound according to the digital after-string data generated by the after-string data generation means. An electronic bowed stringed instrument, characterized in that it outputs a musical tone parameter control signal for variably controlling a musical tone parameter of at least one of the volume level and timbre content of a musical tone therein. (21) In the electronic bowed string instrument according to claim 13 or 16 of the utility model registration claim, the musical tone generation means generates a predetermined musical tone by outputting the sound generation start instruction signal from the sound generation start instruction means. After that, when the value of the digital string detection signal detected by the analog-to-digital conversion means becomes smaller than a predetermined setting value, in response to this, an instruction is given to the musical tone generation means to end the generation of musical tones. 1. An electronic bowed stringed musical instrument, further comprising sound generation end instruction means for outputting a sound generation end instruction signal for the purpose of outputting a sound generation end instruction signal. (22) Scope of claims for utility model registration, paragraphs 13 and 16
In the electronic bowed string instrument according to any one of paragraphs 1 and 21, there is provided a pitch specifying means for specifying the pitch of a musical tone to be generated, and a pitch specifying operation is performed on the pitch specifying means. an electronic bowed string instrument, comprising: pitch information indicating means for outputting pitch information corresponding to the pitch specifying operation to the musical sound generating means when the pitch specifying operation is performed. (23) The string rubbing operation state for the string rubbing input section is detected by the string rubbing sensor means, the string rubbing detection signal detected by the string rubbing sensor means is sent to the musical sound generating means, and the string rubbing operation state is detected from the musical sound generating means. An electronic stringed instrument that generates a predetermined musical tone corresponding to a string detection signal, comprising: an analog-to-digital conversion means that converts a string detection signal detected by the string detection signal into a corresponding digital string detection signal; a timer for timing a first point in time when the value of the digital string detection signal converted by the analog-to-digital converter exceeds a predetermined set value and a second point in time until a predetermined time has elapsed from the first point in time; , sound generation start instructing means for outputting a musical tone start instruction signal for instructing the musical tone generating means to start generating musical tones in response to the first point in time measured by the timing means; and this generation start instruction. When the musical tone generation means generates a predetermined musical tone in response to a musical tone start instruction signal outputted from the means, a predetermined set value is set regardless of the value of the digital string detection signal outputted from the analog-to-digital conversion means. Initial string data setting means for setting initial string data, and after generating a predetermined musical tone from the musical tone generating means in accordance with the sound generation start instruction signal output from the sound generation start instruction means, the analog-to-digital conversion means after-rubbing data generation means for generating after-rubbing data based on the value of the digital string-rubbing detection signal converted by; and after-rubbing data generation means for generating after-rubbing data generated by the initial string setting means. According to the initial string data, the musical tone parameters at the start of musical tone generation are variably controlled. output to the musical tone generating means,
An electronic bowed stringed instrument comprising: musical tone parameter control means for variably controlling musical tone parameters after the musical tone is generated according to the after-stringed string data. (24) In the electronic stringed instrument according to claim 23 of the utility model registration claim, the initial stringed string data setting means sets the value of the digital stringed string detection signal output from the analog-to-digital conversion means as a predetermined setting value. An electronic bowed string instrument characterized by setting the maximum value of. (25) In the electronic bowed string instrument according to claim 23 of the utility model registration claim, the timer means starts counting when a bowed string detection signal detected by the bowed string sensor means exceeds a predetermined set value. and a counting means that instructs to end counting after counting for a predetermined time. (26) In the electronic stringed instrument according to claim 23 of the utility model registration, the initial stringed string data generation means includes the analog-to-digital conversion means and the digital stringed-string detection output from the analog-to-digital conversion means. 1. An electronic stringed instrument comprising: initial data conversion means for converting a signal value into predetermined digital initial stringed data. (27) In the electronic stringed instrument according to claim 26 of the utility model registration, the initial data conversion means converts the digital stringed string detection signal converted by the analog-to-digital conversion means into a predetermined digital initial stringed stringed instrument. An electronic bowed string instrument characterized by having conversion table means for converting into data. (28) In the electronic stringed instrument according to claim 23 of the utility model registration claim, the musical tone parameter control means generates the musical tone according to the digital initial stringed string data generated by the initial stringed string data generation means. variably controlling at least one musical tone parameter of the volume level or timbre content of the desired musical tone, and according to the digital after-string data generated by the after-string data generation means,
An electronic bowed string instrument characterized by outputting a musical tone parameter control signal for variably controlling a musical tone parameter of at least one of the volume level and timbre content of a musical tone being produced. (29) In the electronic bowed string instrument according to claim 23 of the utility model registration claim, the analog・When the value of the digital string detection signal detected by the digital conversion means becomes smaller than a predetermined setting value, in response to this, a sound generation end for instructing the musical sound generation means to end the sound generation. An electronic bowed string instrument, further comprising sound end instruction means for outputting an instruction signal. (30) In the electronic bowed string instrument according to either Claim 23 or 29 of the Utility Model Registration Claim, a pitch specifying means for specifying the pitch of a musical tone to be generated; When a pitch specifying operation is performed on the specifying means, pitch information indicating means outputs pitch information corresponding to the pitch specifying operation to the musical sound generating means. An electronic stringed instrument.